Anonymous Hacktivist Group has declared war versus ISIS following the terrorist attacks on Paris last week, which killed about 129 people. [Scroll down to watch video].
In a video uploaded on Youtube, a representative of the hacktivist group announced that a big operation will be launched against the extremist group and that their attacks on the European city will not go unpunished.
"Anonymous activists from all over the world will hunt you down," Anonymous said in a statement. "Yes, you, the vermin who kill innocent victims, we will hunt you down like we did to those who carried out the attacks on Charlie Hebdo,"
"So get ready for a massive reaction from Anonymous. Know that we will find you and we will never let up," the hacktivist group added. "We are going to launch the biggest ever operation against you - expect massive cyberattacks. War is declared. Prepare yourselves. Know this, the French people are stronger than you and will come out of this atrocity even stronger,"
On the other hand, ISIS responded in a new statement released on the Telegram Channel, calling Anonymous hackers "idiots" for declaring a digital warfare. The message was originally sent in Arabic and English, advising people to be wary of Anonymous, Yahoo reported.
"The #Anonymous hackers threatened in new video release that they will carry out a major hack operation on the Islamic state (idiots)," ISIS resonded versus Anonymous group's declaration. "What are they going to hack?"
The extremist group then noted that so far, Anonymous were only able to hack Twitter accounts and email addresses linked to ISIS.
According to the report, the Telegram, which is an encrypted chat service may have been used to help plot the attacks on Paris.
ISIS went on to warn users to change IP addresses constantly, avoid opening links that they are not sure of and to not talk to strange Telegram users.
Anonymous' warfare launch versus ISIS comes after the series of attacks on Paris last week, Nov. 13, Friday.
Days after the attack, Anonymous had reportedly closed down 6,080 ISIS-affiliated Twitter accounts, using the hashtags #OpParis and #OpISIS.